The emergence of the first computers in cars at the end of the 20th century prompted engineers to come up with a high-quality communication system among electronic car components. The invention of the CAN bus enables a fast flow of information within the car. Car control information can also be transmitted outside of the closed car system, which allows it to manage remote its functionality with mobile application. By simulating messages from the CAN bus using the Web application and communicating with the server via HTTP and the Web Socket protocol, messages are exchanged between the car and the server. The mobile application by connecting to the server displays information from the car and enables dynamic climate temperature value change. Android mobile application as an extension of user interaction is a step towards a unique user experience of car connectivity.